From Longman Dictionary of Contemporary Englishsubtitlesub‧ti‧tle /ˈsʌbˌtaɪtl/ ●○○ noun1 →subtitles2AL[singular] a second title below the main title in a book, which gives more information about what is in the book, show etcThe opera’s subtitle is ‘The School for Lovers’.The book is subtitled ‘A Psychology of Masculinity’. —subtitle verb [intransitive, transitive] —subtitled adjectivea subtitled version of the film